@Article{ Buildings,
	author = {Pascal M{\"u}ller and Peter Wonka and Simon Haegler and Andreas Ulmer and Luc Van Gool},
	title = "Procedural modeling of buildings",
	journal = "ACM Trans. Graph.",
	volume = "25",
	number = "3",
	year = "2006",
	issn = "0730-0301",
	pages = "614--623",
	doi = "http://doi.acm.org/10.1145/1141911.1141931",
	publisher = "ACM Press",
	address = "New York, NY, USA"
}

@Book{ Formal,
	author = "G. Stiny",
	title = "Pictorial and Formal Aspects of Shape and Shape Grammars",
	publisher = "Birkhauser Verlag",
	year = "1975",
	address = "Basel"
}

@InProceedings{ InteractiveBuildings,
	author = "Markus Lipp and Peter Wonka and Michael Wimmer",
	title = "Interactive visual editing of grammars for procedural architecture",
	booktitle = "SIGGRAPH '08: ACM SIGGRAPH 2008 papers",
	year = "2008",
	pages = "1--10",
	location = "Los Angeles, California",
	doi = "http://doi.acm.org/10.1145/1399504.1360701",
	publisher = "ACM",
	address = "New York, NY, USA"
}

@Misc{ Spirit,
	title = "Boost Spirit",
	howpublished = "http://spirit.sourceforge.net/",
	year = "January, 2010"
}

@Misc{ Compass,
	title = "SensorManager Reference",
	howpublished = "http://developer.android.com/reference/android/hardware/SensorManager.html",
	month = mar,
	year = "2010"
}

@Misc{ GPS,
	title = "Location Reference",
	howpublished = "http://developer.android.com/reference/android/location/Location.html",
	month = mar,
	year = "2010"
}

@Misc{ OpenGLcamera,
	title = "OpenGL Coordinate System Tutorial",
	author = "Greg Sidelnikov",
	howpublished = "http://www.falloutsoftware.com/tutorials/gl/gl0.htm",
	month = nov,
	year = "2009"
}

@Misc{ raycasting,
	title = "Ray-Casting Tutorial",
	author = "F. Permadi",
	howpublished = "http://www.permadi.com/tutorial/raycast/index.html",
	year = "1996"
}

@Misc{ Maps,
	title = "Google Maps Reference",
	howpublished = "http://code.google.com/android/add-ons/google-apis/reference/index.html"
}

